Using UUID in laravel 5.3 model

I've built a new Laravel 5.3 application, and in my tables I'm using postgres UUID as the primary and foreign keys.

In defining the Laravel models, I created the relationships normally. However, it appears that Laravel's ORM isn't translating the request properly:

PHP Warning:  Uncaught exception 'PDOException' with message 'SQLSTATE[22P02]: Invalid text representation: 7 ERROR:  invalid input syntax for uuid: "0"'

I've searched the laravel docs but haven't found anything to explain how to use UUIDs as keys. Is there some additional configuration I need to do?

via Chebli Mohamed